Sequence the jobs shown below by using a Gantt chart. Assume that move time between machine is one hour. sequence the jobs in priority order 1,2,3,4.
( A) what is the makespan ?
( B) how much machine idle time is there?
( C) when is each job delivered compared with its due date?
(D) how much idle time waiting time is there for each job?
Job work center machine DUE DATE
1 A/3, B/2, C/2 3
2 C/2, A/4 2
3 B/6, A/1, C/3 4
4 C/4, A/1 B/2 3